Table 2 Angiographic characteristics of the patients at baseline
Baseline angiographic characteristic | EE-BRS | EES | P-value |
|---|---|---|---|
Patient-level analysis | |||
 Number of patients | 150 | 249 |  |
 Number of treated vessels–mean ± SD | 1.1 ± 0.3 | 1.2 ± 0.4 | <0.01 |
 Number of treated target lesions–mean ± SD | 1.3 ± 0.5 | 1.3 ± 0.6 | 0.22 |
 Total number of devices–mean ± SD | 1.4 ± 0.7 | 1.8 ± 1.1 | <0.01 |
Lesion-level analysis | |||
 Number of lesions | 188 | 336 |  |
Coronary artery lesion distribution–no. (%) | |||
 Right coronary artery | 57 (30.3) | 108 (32.1) | 0.67 |
 Left anterior descending artery | 89 (47.6) | 144 (42.9) | 0.42 |
 Circumflex artery | 40 (21.3) | 82 (24.4) | 0.30 |
 Left main | 0 (0) | 10 (3.0) | 0.02 |
 Arterial or venous graft | 2 (1.1) | 0 | 0.13 |
Coronary artery lesion characteristics | |||
 Bifurcation or trifurcation–no. (%) | 27 (14.4) | 77 (22.9) | 0.02 |
Device-level analysis | |||
 Number of devices | 214 | 454 |  |
 Diameter device–mean ± SDb | 3.0 ± 0.4 | 2.9 ± 0.5 | <0.01 |
 Highest device inflation–mean ± SD; no.c | 14.3 ± 2.6, 211a | 15.4 ± 4.3, 446a | <0.01 |
 Total length of devices per lesion–mean ± SDb | 23.7 ± 11.7 | 27.0 ± 15.4 | <0.01 |
Procedure-level analysis | |||
 Number of PCI procedures | 188 | 336 |  |
Results–no. (%) | |||
 Post-procedural TIMI grade 3 | 186 (100), 186a | 334 (99.4) | 0.54 |
 Angiographic success | 185 (100), 185a | 334 (99.4) | 0.54 |
 Procedural success | 184 (97.9) | 327 (97.3) | 0.70 |
Peri-implantation procedures | |||
 Predilatation–no. (%) | 177 (94.1) | 227 (67.6) | <0.01 |
 Predilatation balloon size–mean ± SD; no.b | 2.8 ± 0.8, 176* | 2.4 ± 0.5 | <0.01 |
 Predilatation pressure–mean ± SD; no.c | 14.8 ± 4.0, 174a | 14.5 ± 4.5 | 0.51 |
 Postdilatation–no. (%) | 142 (75.5) | 273 (81.3) | 0.12 |
 Postdilatation balloon size–mean ± SDb | 3.2 ± 0.5 | 3.1 ± 0.5 | 0.34 |
 Postdilatation pressure–mean ± SDc | 17.3 ± 4.3 | 22.5 ± 5.5 | <0.01 |